1. Install Python3 (confirmed to work on 3.8.9 and 3.10.4 on MacOS, Windows and Armbian)
2. pip install -r requirements.txt
3. Fill the config.json (you can create a copy of file before filling the values as local.config.json for easier updates from git to avoid conflicts)

1. Create bot via @BotFather, remember the API token for the bot
2. Create a channel
3. Add bot as an admin of the channel

Since end of August hCaptcha was introduced. In order to automatically work around that https://anti-captcha.com/ service is used.

However, solving captcha is not enough.

Firstly, modern browsers self-identify themselves via navigator.webDriver and let captcha services prevent automatic access. To work around this we have to use old browser builds. For Firefox it is confirmed that 78.9.0esr version works.

Secondly, browser runs via man-in-the-middle proxy (mitmproxy) in order to be able to intercept the JS callback which site normally calls to pass the captcha token to the server. Otherwise, it's from very hard to impossible to do.

Old Firefox (like 78.9.0esr) is confirmed to work in both headless and regular modes.

Fresh Chrome versions also work with the help of the undetected-chromedriver.

Please note however that it only seems to work in regular (not headless) mode.

You can use Virtual Display like Xvfb to work around that.

With Xvfb you can simply run it like:

xvfb-run python main.py --headless=False check

https://www.vfsvisaonline.com/Netherlands-Global-Online-Appointment_Zone2/AppScheduling/AppWelcome.aspx?P=OG3X2CQ4L1NjVC94HrXIC7tGMHIlhh8IdveJteoOegY%3D

https://www.vfsvisaonline.com/Netherlands-Global-Online-Appointment_Zone2/AppScheduling/AppWelcome.aspx?P=CE0jbgR7fd0NTf6eHZaG9Ksnpf50voAKsauBjihfkds%3D

Specify null as city because only one city is available.